[SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter

[Verne Koester]

Bob,
The 1.4 rear bearing doesn't get enough lubrication. I trashed a brand new 
stainless bearing two seasons ago in 4 flights. Felt like it had gravel in 
the bearings. Went home, took it out, and it looked like it had a whole 
season's worth of rust on it. Magnification revealed that it was actually 
burnt oil. Put in the sealed bearing and have at least 40 gallons of fuel 
through it and still running strong. Bearing feels as good as the day I put 
it in. I don't know if the lack of lube is caused by the full disk 
counterweight on the crank or if the tuned pipe has some sort of scavenging 
effect on the crankcase. Don't care anymore because it runs great and the 
bearings are lasting longer than any engine I've ever had.

Verne


----- Original Message ----- 
From: <rcaerobob at cox.net>
To: <discussion at nsrca.org>
Sent: Friday, May 20, 2005 11:37 AM
Subject: Re: [SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter


> Must be a LOT of differences in how those bearings are loaded between the 
> two motors.  Fascinating!
>>
>> From: Rodney Tanner <rodney19821982 at yahoo.com>
>> Date: 2005/05/20 Fri AM 11:33:19 EDT
>> To: discussion at nsrca.org
>> Subject: [SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
>>
>> Thanks Verne,
>> That is what I had heard.
>>
>> Rodney Tanner.
>>
>> Verne Koester <verne at twmi.rr.com> wrote:
>> Rodney,
>> If you're putting it in an O.S. 1.4, definitely leave the seals in. 
>> You'll get 300-500 flights with the seals in. With them out, you'll be 
>> lucky to put 5 gallons  through the engine before they're shot!
>>
>> Verne Koester
>> ----- Original Message ----- 
>> From: Rodney Tanner
>> To: discussion at nsrca.org
>> Sent: Thursday, May 19, 2005 10:33 PM
>> Subject: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
>>
>>
>> Bob, So using an OS 140 EFI bearing, is it advisable to remove the seals?
>> Rodney
>>
>> Bob Pastorello <rcaerobob at cox.net> wrote:
>> Since I use theirs, I get this e-newsletter.  This month's tip;
>> <<If your Front engine bearing has two rubber seals you should not remove 
>> them. These bearings have their own grease and can help stop oil leaks. 
>> If your bearing has two shields, we recommend you remove one of them. For 
>> instructions on removing your shields take a look at this Help Section.
>>
>> Your Rear engine bearing should be open on both sides to allow as much 
>> fuel as possible to pass through and act as a lubricant. You may however 
>> want leave one shield on in the rear which would help to protect the rest 
>> of the engine from any foreign matter getting through. This should not be 
>> done with one seal. If you find your engine is stingy in getting fuel to 
>> the rear, you should definitely leave the bearing open.
>>
>> In our next issue of the Boca Bearings Tips & Advice Newsletter we will 
>> show you how to remove your bearing shields. >>
>>
>> Note - if you open your crankcase, using sealed bearings, and the 
>> crankshaft counterweight it dry-looking, or the lower part of the bearing 
>> isn't pooling oil, you may think about removing the seals.  I do, for 
>> this reason.
>>
>> Bob Pastorello
>> www.rcaerobats.net
>> rcaerobob at cox.net
>>
>>
>
> Bob Pastorello, El Reno, OK, USA
> rcaerobob at cox.net
> www.rcaerobats.net
>
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